Bosan Technology Co., Ltd., founded in 2004, is a manufacturer of ALARM system in Shenzhen, China. We have products manufacturer of high-quality security and protection products and accessories, such as gas leakage detector, smoke detector, infared detector, fire detector, etc. We are dedicated to enhancing people's way of life by increasing their sense of security. To combine the idea of safety with health creatively is always our principle and goal. Welome for OEM, ODM requiements, if you have any need, plslet me know.